Immune optimization algorithm for solving vertical handoff decision problem in heterogeneous wireless network

2012 ◽  
Vol 19 (4) ◽  
pp. 507-516 ◽  
Author(s):  
Fang Liu ◽  
Si-feng Zhu ◽  
Zheng-yi Chai ◽  
Yu-tao Qi ◽  
Jian-she Wu
Keyword(s):  
Wireless Network ◽  
Optimization Algorithm ◽  
Decision Problem ◽  
Vertical Handoff ◽  
Heterogeneous Wireless Network ◽  
Immune Optimization ◽  
Immune Optimization Algorithm

scholarly journals A Fuzzy Preprocessing Module for Optimizing the Access Network Selection in Wireless Networks

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Faisal Kaleem ◽  
Abolfazl Mehbodniya ◽  
Kang K. Yen ◽  
Fumiyuki Adachi
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Proper Time ◽  
Heterogeneous Wireless Networks ◽  
Access Network ◽  
Wireless Access ◽  
Vertical Handoff ◽  
Heterogeneous Wireless Network ◽  
Multiple Interfaces ◽  
Access Network Selection

A heterogeneous wireless network is characterized by the presence of different wireless access technologies that coexist in an overlay fashion. These wireless access technologies usually differ in terms of their operating parameters. On the other hand, Mobile Stations (MSs) in a heterogeneous wireless network are equipped with multiple interfaces to access different types of services from these wireless access technologies. The ultimate goal of these heterogeneous wireless networks is to provide global connectivity with efficient ubiquitous computing to these MSs based on the Always Best Connected (ABC) principle. This is where the need for intelligent and efficient Vertical Handoffs (VHOs) between wireless technologies in a heterogeneous environment becomes apparent. This paper presents the design and implementation of a fuzzy multicriteria based Vertical Handoff Necessity Estimation (VHONE) scheme that determines the proper time for VHO, while considering the continuity and quality of the currently utilized service, and the end-users' satisfaction.

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